A regional passenger plane carrying nearly 50 people, including five children, has gone missing in Russia’s Amur region. The aircraft, operated by Siberia-based Angara Airlines, vanished from radar on Thursday and lost all contact with air traffic control. The missing plane is an An-24 model, with 43 passengers and six crew members on board. Search operations are hampered by rugged terrain and severe weather, although helicopters and drones are being deployed. The Russian military has been asked to assist in the ongoing rescue efforts.